Turbine water-wheel



B. STETSON. TURBINB- 0R HYDRAULIC MOTOR.

No. 29,654. Patented Aug. 14, 1860.

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UNITED STATES PATENT OFFICE.

BRADFORD STETSON, OF UXBRIDGE, MASSACHUSETTS, ASSIGXOR TO HIMSELF, AND ELHER TOYVNSEND, OF BOSTON, MASSACHUSETTS.

TURBINE WATER-WHEEL.

Specification forming part of Letters Patent No. 29,654, dated August 14:, 1860; Reissued March 1,

V 1870, 'No. 3,866.

To all whom it may concern:

Be it known that I, BRADFORD SrETsoN, of Uxbridge, in county of orcester and State of Massachusetts, have invented an Improved Turbine or Hydraulic Motor; and I do hereby declare the same is fully de scribed and represented in the following specification and the accompanying drawings, of which Figure, 1, is a top view of the said turbine wheel and its fiume or water conductor; Fig. a vertical, central and transverse section of the same; Fig. 8, a horizontal section taken through the wheel, its annular gate and flume. Fig. 4, is a top view of the wheel or turbine. Fig. 5, is a top view of the slotted wheel, which is arranged on the top of the turbine and serves to move its buckets in such manner as to increase or diminish their orifices of discharge. Fig. 6, is a sectional view in elevation of the fiume taken so as to represent the mode of arranging its water chutes.

In the drawings, A, denotes the turbine or water wheel affixed to a vertical shaft, B, which is arranged within and concentrically with two tubular shafts, C, D, the said water wheel being composed of two open heads, (a, (c, placed parallel to one another and at a suitable distance apart to admit a series of curved buckets, Z), 6, b, to be placed between them as shown in the drawings. Each bucket is formed as shown in side view in Fig. 7, and in section as represented in Fig. 3,,it being constructed with three j ournals, 0, (Z, (Z, two of which viz., 0, (Z, extend from the upper end of the bucket, while the third projects from its lower end as shown in the said figures. The two journals, (Z, (Z, turn in bearings made in the heads, while the third journal, 0, passes through one of a series of curved slots, 6, e, 6, arranged as shown in Fig. 4. The said journal 0, also passes into one of another series of slots, f, f, f, arranged in a wheel, E, as shown in Fig. 5, that is in such manner that when the said wheel E, is turned on its axis, it by means of its slots shall cause the buckets to so turn in their supports, as to either approach toward or recede from one another whereby their openings of discharge may be either diminished or increased in size.

Surrounding the wheel is an annular gate, F, a side View of which is shown in Fig.

8. It is furnished with a series of openings g, g, arranged in it as shown in the drawings. This is affixed to the outer shaft, D, while, the slotted wheel, E, is fastened to the second shaft, C.

A gear wheel, 70, is carried by the shaft D, and engages with a pinion, i, fixed on a shaft, 70, on whose upper end is a hand wheel, Z. By turning the hand wheel, the gate may be revolved horizontally so as either to open or close the fiume eduction passages. Furthermore, there are arranged on the two shafts, B, and, C, in manner as shown in Fig. 2, two disks m, a, one being affixed on each shaft. A tangent screw, 0, turns in a projection 29, extended from one of the disks and is screwed and through another projection, 7), that extends from the other disk the same being as shown in Fig. 9, which is a sectional view of the disks, projections and screw. By applying a key to the head of the screw and turning the screw, motion may be imparted to the slotted wheel, E, so as to cause it to turn and operate the buckets as described.

The gate works against the inner surface of the concentric annular fiume, G, which is constructed so as to surround the gate, the wheel and the several shafts as shown in Figs. 1, 2 and 3, and is provided with a series of discharging passages s, s, 8, disposed within its lower part and corresponding in number with those of the gate. Besides such, the flume has a series of chutes or transverse partitions, t, t, t, each of which is placed within the flume and extends across it from side to side and downward in a helix as shown in the drawings. They serve to direct the water of the flume to the eduction passages u, a, u and so that it may impinge against each of the buckets in that direction which will cause it to operate with the greatest useful effect.

By means of the chutes, the water enters into the turbine in several streams, each of which is so isolated from the others, and governed in its direction by the chutes, as to enable it to operate without being injuriously affected by any of the other streams.

By applying the buckets to the wheel as specified, and by furnishing them with a means of moving them relatively to each other, so, as either to increase or diminish their discharging openings I am enabled to retain the water against the buckets long enough for it to expend its power against them. Although I may regulate the amount discharged from the flume, when that amount is decreased, it will not operate with the best possible effect, unless the discharge orifice of each bucket is diminished so as to prevent the water from escaping from the buckets too freely for when the discharging opening of the bucket remains constant in size or area much of the water that Would impinge against the bucket With useful effect escapes through the bucket Without properly acting thereon.

I do not claim adjustable buckets a heli- 

